Amity University 2006 Diploma Information Technology iit jee with answers - Question Paper

Q. 12 Which of the subsequent new observations would most weaken the argument of Jesse?
A. Observations from the southern sky showing uniformly distributed gamma ray bursts.
B. Observations of bursts of x-rays coming from sources far outside our galaxy.
C. Observations showing that our galaxy is not truly disk shaped, and is in fact more like a sphere.
D. Observations showing that earlier studies had overestimated the energy coming from gamma ray bursts.
Answer: C
Description: Jesse's essential point is that we see gamma ray bursts spread out in a shape that is various from the shape of our galaxy. If it turns out that our galaxy is not disk shaped, and indeed is spherical, then her argument is considerably weakened.
Q. 13 Which of the subsequent would most weaken Becky's argument that the bursts could not occur far outside our galaxy?
A. New measurements showed that the bursts do occur in a disk shaped trend.
B. The discovery that astronomical events occurring very close to the Earth also appear uniformly across the sky.
C. The discovery that gamma ray bursts occur twice as frequently as previously thought.
D. The discovery that the collision of black holes could theoretically produce more energy than any other known event.
Answer: B
Description: Becky's argument is based strongly on the fact that we do not know of any astronomical events that could yield the energy needed for the gamma ray bursts. If new sources of high energy events are discovered, then her argument is weakened.
Q. 14 The 2 astronomers disagree most as to:
A. the existence of gamma ray bursts.
B. the timing of the gamma ray bursts.
C. the location of the source of the gamma ray bursts.
D. the amount of energy reaching Earth from the gamma ray bursts.
Answer: C
Description: Jesse presents an argument to show that the gamma ray bursts must occur outside our galaxy; Becky argues that the gamma ray bursts must occur closer to home. The 2 astronomers differ most about the location of the source of the gamma ray bursts.
Q. 15 Light from sources far from the Earth is often redshifted, which means that it has a longer wavelength. Which of the following, if true, would most support Jesse's position?
A. Radiation from the gamma ray bursts is redshifted similarly to objects known to be within our galaxy.
B. Radiation from the gamma ray bursts is redshifted in a trend similar to objects known to be far outside our galaxy.
C. The radiation is not redshifted at all.

Earning:   Approval pending.